Applicator for yarn conditioning liquids



May'22, 1951 c. F. DULKEN ET AL 2,553,815

APPLIOATOR FOR YARN CONDITIONING LIQUIDS Filed April 9, 1947 2 Sheets-Sheet 1 ATTORNEY May 22 1951 c. F. DULKEN ET AL 2,553,815

APPLICATOR FOR YARN CONDITIONING LIQUIDS Filed April 9, 1947 2 Sheets-Sheet 2 ATTORNE Patented May Z2, 1951 ArrLIcAToR FOR YARN CONDITIONING LIQUIDS Charles F. Duiken, Montclair., HelmuthvC. Sonntag, Newark, andGeorge Westwater, Irvington, N.-A J f; Said Sonntag and saidA-Westwaterassign- .ors tosaid yDulken Y Application April 9,1947, Serial No. 740,402

4 Claims. (Cl. 2994-132) Thespresent invention relates .tc an improved device rfor applying .treatingand conditioning or dyeingfliquids to. textile materials such as yarn, thread or the like while they Vare Wound on `.the packagev or unit in conventional Winding machines, vmore particularly for applying said liquids .to the roll which. rotatestheL package by frictional engagement .therewith in such Winding machines. The new device or vapplicator is also suitable .for use in `combination .With such textile machinesas .spinning frames, doublers, tvvisters, and the like.

The .device according tothe invention is partieular-ly adapted to carry Jout the method of conditioning the surfaceof thread or yarn packages while .in the process ,of .being formed,.as set forth in our copending .application Ser. No. 716,446, rlledDecember 16,1946, ofwhich; the present application is a continuation in part.

V'Ilheobjectof the invention ydisclosed inxour copending application Ser. No. 716,446 is the `provisionof a method and means by which the yarn treatingliquid is finely divided into a mist .by pressure reduction ina .nozzle and .said mist is` directed through aslotopening tothe roll of the Winding Amachine .which roll. drivesy the package and .on .which slides .the yarn vorthread to be wound. Said slot being adjacent and substantially as longfas .said roll and substantially parallel to 'it-s longitudinal, axis. The mist .directed to the rollforrns ,a film thereon which. is wiped ogby-the Yarn Slidingon the roll and also picked up by the package Whichis in irictional engagement with the roll. Since theainount of liquid needed -for .keeping the roll Wet is .much less than can be eiciently atomized in commercialV nozzles azportion of the atomized liquid ismade -to flow back ,along lthe inside Walls of our device .and thronghan outlet thereon to thesourceof supply of the liquid and only .a small portion escapes throughthe slot in the forrnof inist.

In many applications of our device it hasbeen found desirable that the density of `the mist escaping .through the slot yand directed to the roll be -controlled over the whole length of the slot With commercial atomizing nozzles it is not runusual that the mist is more dense in the center than on the sides and .with a device as disclosed in our copending application Ser. No. 716,446 the center of the roll which is closer and directly op-v posite the nozzle is more favored withliquid than the end portions of the roll. This-is an undesirable condition as .the `yarn wound in the middle of the roll receives .moreliquid than that on o the .side and the treatment is not homogeneous. o

When winding cone shaped packages muchmore yarn-flows over and is adjacent one end portion of. the rollV than at the other end of the roll. Much-:more liquid must therefore be applied to one end vportion of the roll than to the other.

.Itis an object of the present invention to provide a device in which the density of the mist can be varied `along the length of the slot through which it escapes whereby on-e portion of the roll can be more favored with treating liquid than `popera-ting ,conditions the mist escaping from the slot becomes too Wet and it is another object of the `present invention to provide means for preventingthis and for returning to its source of suppl-yall insuiiiciently atomized liquid or lpor,- -tions of atomized liquid tending to Vproduce too much foam instead of` mist.

Further and .other objects of the present invention Will be hereinafter Iset forth in the accompanying specification and claims and shown .in the drawings which, by Way of illustration, showivvhat we now consider to be preferredembodiments of our invention.

In the drawings Fig, 1 is a -top view of the device according to theinvention with a portion of the top cover plate removed;

Fig. 2 is a cross-sectional vievv of the device shown in Fig. 1, the view being taken along line II-II in Fig. l;

Fig.v 3 is ya longitudinal sectional View of the device on a smaller scale according to the invention taken along .the line III-Ill in Fig. 1; this figure also illustrates ydiagramrnatically the conduits leading to and from the applicator;

Fig. 4 illustrates, in-a top view, a modication of a portionof the device shown in Fig. 1;

Fig. 5 is a crossfsectional View of the portion of the modiiedapplicator shown in Fig. 4 taken along 'the line V-V of said figure;

Fig. 6 is a top View of another modification of a portionof the device shown in Fig. 1;

Figl lis a cross-sectional view of the modified device shown in Fig. 6 taken along line VII- VII ofsaid figure;

Fig. B'illustrates .a further ymodification of a portion of the deViceshOv/n in Fig. 1, in a top View;

.Fig,f -9 is a sectional view of the device shown inFig. l8 taken along `line IX-IX of Fig. 8;

Fig...10 is a cross-,sectional view of the device shown in Fig. 8 taken alongline X-X of said gure;

Fig. 11 is a large scale sectional view of an element used in the construction of the device illustrated in Figs. 8 to 10;

Fig. 12 is a large scale view of a portion of an element used in the applicator according to the invention;

Fig. 13 is a modification of the element shown in Fig. 12.

Like parts are designated by like numerals in all figures of the drawings.

Referring more particularly to Figs. 1 to 3, numeral 3 designates a nozzle in which the pressure of the treating liquid is reduced and the fluid enters chamber 4 of casing 2 of the applicator according to the invention in the form of a spray or mist. Casing 2 has substantially the configuration of a flat box having a bottom I and a cover` II, both in the form of an isosceles triangle and the nozzle is disposed at the vertex opposite to the base thereof. When the cover II which may be made of translucent material, is applied, the box is closed on all sides except the side 2'I at the base of the triangle which is partly open, through which the mist of treating fluid emerges to be picked up by the roll I9 driving the package 25. 26 indicates the thread as it passes over the roll I9 and is Wound to form the package 25.

Tongue like wall portions 5 and 6 project from the lateral walls of casing 2 into the interior thereof parallel to the base side of the triangle. These wall portions constitute a partition, open in the center, for forming chamber 4. Below the nozzle 3 an opening I3 is provided in the bottom of the casing through which opening all surplus liquid leaves the casing.

As shown in Fig. 3 the device is in inclined position when mounted on the winding machine with opening i3 at the lowermost point so that all surplus liquid flows toward said opening. Wall portions 5 and 6 have openings 5 and 6 adjacent the inside bottom of casing 2 to facilitate back flow of liquid from chamber I2.

The center opening 28 between wall portions 5 and 6 can be closed by a flap l swingably mounted on the side walls 9 and I0 by means of a rod 8. Flap 'I is normally held in open position by a spring I5 pulling on a portion I6 of rod 8 which portion is bent to form an angle with the portion of rod S attached to flap A trip mechanism is connected with a link member I8. When member I8 is pulled on against the action of spring I5 the flap is turned clockwise as seen in Fig. 3 and opening 28 is closed, and no mist passes into chamber I2. When the mist hits baille 'I it forms a liquid film and the liquid flows down on the flap and out of chamber 4 through slot I3.

The far end of chamber I2 is partly closed by a screen 29 mounted on tonguelike wall portions 39 and 3l projecting into the interior of casing 2 from the lateral walls 9 and I0. This screen or strainer may have the configuration shown in Fig. 12 or that shown in Fig. 13 or any other suitable form. The purpose of the screen will be described later on.

The portion of the mist passing through screen 29 leaves the device through the slot opening 20 formed between the end Wall I4 and the edge of the flap 2I which flap is hinged to a transverse wall member 22 mounted to the wall portions 39 and 3I. The flap is held, normally, in open position by means of a spring 23 one end of 4 which is connected to member 22 and the other to the flap 2 I.

The width of slot 29 can be adjusted by manipulation of the adjustment screw 24 which extends through cover plate II and whose end abuts flap 2|. A baille like Wall portion 32 extends across the casing inside of and in the neighborhood of end wall portion I4. This causes catching of insuiciently atomized liquid which runs down thereon and back to exit I3. It has openings 33 at the bottom permitting back flow of liquid running down on the outside surface of wall portion 32 and the inside surface of end wall I4.

It has been found that slot opening 20 cannot be closed too much as this causes formation of foam and liquid films preventing proper spray of mist to the surface of roll I9. Screen or strainer 29 contributes to the prevention of such undesirable conditions. It causes unsufciently atomized liquid to run down on the solid portions of the screen and mist only passes its openings.

It also breaks up foam forming at the discharge portion of the applicator.

The device as described so far has a tendency to discharge more mist in the center portions than on the sides so that the center of roll I9 and consequently of package 25 is favored too much and not enough liquid is applied to the end portions of the roll and package. When winding cone shaped packages more thread is wound on the large diameter end than on the small diameter end, and more liquid must be applied to the portion of roll I9 which is adjacent the large diameter end of the package. It is the main object of the present invention to provide means for adjustably controlling the distribution of the quantity of liquid applied to various portions of roll I9.

For this purpose we propose four alternative devices:

The first is illustrated in Figs. 1 to 3. Three individual gate plates I'I, 34 and 35 are depended at two points each, from the top plate II into chamber I2. Pairs of adjustment screws 35-38, 31-33, and 39-40 connected individually with the gates I'I, 34 and 35, respectively, are provided for this purpose. By manipulation of these screws the end portions of the gates II, 34 and 35 can be individually lowered toward or lifted from the inside vbottom of casing 2 whereby the clearance available for vapor flow can be regulated over a wide range and to a different extent over the width of the applicator.

Figs. 4 and 5 illustrate an alternative and simplied scheme. One gate member 4I, only, is depended at its ends by adjustment screws 42 and 43 from the top plate II. The bottom edge of the gate 4I is curved so that the clearance at the sides is always greater than at the center. The extent of the lateral clearances can be changed, individually, by individual manipulation of screws 42 and 43.

Under certain conditions it is desirable that flow of mist at the center is almost completely prevented. To accomplish this, the modification shown in Figs. 6 and '7 is used. In this case a center gate member 44 is provided adjacent to member 4I and adjustably, as to its elevation, supported from the cover plate Ii by means of adjustment screw 45.

Where complete flexibility of adjustment is desired, the modification shown in Figs. 8 to 11 may be used. In this embodiment of our invention a flexible band 46 for example of the vtype as is used in connection with Wrist Watches, is placed in the way of the mist travelling through chamber l2 and connected by means of brackets 48 to the lower ends of a plurality of screws 4l the elevation of which is individually adjustable as in the case of the adjustable screws in the modifications as per Figs. 1 to 7. Fig. 11 shows in a large scale a longitudinal section through a portion of the band 46. A band of any other construction may be used as long as it can be flexed in the way shown in Fig. 10, i. e. with the band remaining substantially in a plane as dened in Figs. 8 and 9 and with the longitudinal edges adapted to be moved to different elevations from the bottom of casing 2.

It is only important to control the passage area at the bottom of the tray or casing 2. Relatively less mist passes over the top of the regulating devices in chamber I2 because the nozzle 3 is nearer the bottom than the top and the upper portion of the mist forms a lm at the inside surface of the top plate and iiows back thereon. In addition, there is a baffle S9 extending across the top plate ll and into the top of chamber I2.

The total amount of liquid atomized may be controlled by controlling the speed of pump P and/or the amount of liquid entering the pump by manipulation of valve 5|. To assure constant pressure in the conduit 52 supplying the nozzle 3 a by pass conduit 53 is provided on the pump P containing a constant pressure outlet valve Eli.

While we believe the above ydescribed embodiments of our invention to be preferred embodiments, we Wish it to be understood that we do not desire to be limited to the exact details of design and construction shown and described, for obvious modifications will occur to a person skilled in the art.

We claim:

1. An apparatus adapted for use on a conventional yarn winding machine for applying a treating liquid to the unit onto or from which the material to be treated is Wound, said apparatus comprising, in combination, a flat casing having a top and a bottom wall of substantially the shape of isosceles triangles, and having two side Walls of substantially equal length, a pressure atomizing nozzle for the treating liquid connected with said casing at the intersection of said two side walls and discharging atomized liquid into said casing, the side of said casing opposite said nozzle having a slot opening extending substantially over the entire length of said side and being placed substantially parallel to the rotation axis of the yarn unit, for discharging the liquid atomized by said nozzle from said casing, and a plane baiile disposed within said casing with its plane at a right angle to and being less wide than the distance between said top and bottom Walls for leaving a passage for the atomized liquid adjacent to said top and bottom walls, connecting means between said baiile and said casing and including adjusting means for adjusting the position of the baffle between said top and bottom walls and the Width of said passages.

2. An apparatus as set forth in claim 1, comprising a second plane baie disposed within said casing parallel to the plane of the rst baffle and being less wide than the distance between said top and bottom walls for leaving a passage for the atomized liquid adjacent to said top and bottom walls, and support means connecting said second baffie with said casing and comprising displacing means for displacing the second baiile in its plane between said top and bottom walls independently of the rst baffle.

3. An apparatus as set forth in claim 2, said second bafe being shorter than the rst baffle.

4. An apparatus adapted for use on a conventional yarn winding machine for applying a treating liquid to the unit onto or from which the material to be treated is wound, said apparatus comprising, in combination, a ilat casing having a top and a bottom wall of substantially the shape of isosceles triangles, and having two side walls of substantially equal length, a pressure atomizing nozzle for the treating liquid connected with said casing at the intersection of said two side walls and discharging atomized liquid into said casing, the side of said casing opposite said nozzle having a slot opening extending substantially over the entire length of said side and being placed substantially parallel to the rotation axis of the yarn unit, for discharging the liquid atomized by said nozzle from said casing, and a longitudinal and plane baiile having two end portions and being placed in said casing with its plane at a right angle to said top and bottom Walls and being less wide than the distance between said walls for leaving passages for the atomized liquid adjacent to said walls, and individual adjustable connections between said end portions and one of said top and bottom walls for individually adjusting the distance of said end portions therefrom.

CHARLES F. DULKEN.

HELMUTH C. SONNTAG.

GEO. WESTWATER.

REFERENCES CITED The following references are of record in the le of this patent:

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